<router-outlet></router-outlet>
<div *ngIf="loading$ | async" style="position:fixed;top:0;left:0;width:100%;height:100%;z-index:1001;background:rgba(24,144,255,0.1);">
    <div style="position:absolute;top: 50%;left:50%;margin:-16px 0 0 -16px;">
      <nz-spin nzSize="large"></nz-spin>
    </div>
</div>